Welcome to the forum. We have a lot of fun here so stick around. A lot of learning takes place here also.

This is an interesting shot. It is difficult to tell what is outside the window but I think it is bushes.

Here is a little tip for shooting through dirty windows. It won't help in this case--the windows are too dirty. This works for aquariums, also. It the window you are shooting through has a lot of streaking and dirt and you don't need to include the frame, put the front of the lens right up against the glass. (A uv filter is a must here to protect the lens) By doing this any dirt or streaking on the lens will be so extremely out of focus, it won't be visible.

Thanks all for the kind words. Selvin, it's funny that you would put it that way. That is kind of the story the picture is trying to tell. The place that I took this is a very rundown thrift store, upstairs. It's the kind of place where you might be concerned you will go through the floor. So the "eww yuck, but what history" effect is really the way you feel when you are there.